Add apidoc for pprof.test
Add apidoc for pprof.test


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Former-commit-id: 9303f6dc4a941cd19d482a50eccbf1762be555ba [formerly ed18e0e0de1077321ffb3c02b27aa5f0b40f3154] [formerly 070cdf44be70184d9d1cdd4697cd53ae351b039a [formerly d8073f4ddc27cea0f11303824ba3b4c936c45fcd]]
Former-commit-id: 32d084897021ba9527f0dbb8ab5bad361a637509 [formerly d9b4ba8cfaeee6c2bf43e2624c9bb9b07b6877ab]
Former-commit-id: 81c81554f811891dd1f408137f429d340c6f5574
PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild,PolyJIT/benchbuild